The first resolved and detected classical nova shell in X-rays in comparison with the ROSAT detections of hard X-ray emission from classical nova in outburst

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Atıf İçin Kopyala

Balman S., Ogelman H.

BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES, cilt.25, ss.363-368, 2000 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 25
• Basım Tarihi: 2000
• Doi Numarası: 10.1016/s0273-1177(99)00759-0
• Dergi Adı: BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.363-368
• Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

We present the ROSAT High Resolution Imager (HRI) data of the first resolved and detected classical nova shell in the X-ray wavelengths : The shell of Nova Persei (1901). We find that the shell is composed of knots and has an elliptical shape. The surface brightness is about 703.4+/-54.5 counts arcmin(-2). We estimate that the spectrum is of thermal origin with a luminosity of 8.0x10(31) erg s(-1) and an X-ray temperature of similar to 2.0x10(6) K in the 0.1-2.4 keV energy range. The knots are most likely a result of fragmentation and condensation in the post-shock region. This detection sheds some light into one of the most poorly understood stages of classical nova evolution. (C) 2000 COSPAR. Published by Elsevier Science Ltd.